Telex MCE325 - Manual (Page 84)

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
REAR PANEL MOUNTED
15
GND TP
FRONT
15VAC
(SHT1,4A)
SPKR ON
20
CH 1
(SHT1,4B),(SHT2,6C)
SOURCE
(2B)
(SHT1,4C)
3
SWITCHES
(5D)
19
CH 2
ANALOG MID
,(SHT2,5D)
(SHT2,6B)
EARTH
(SHT1,4D)
(SHT2,1D)
(SHT1,4B),(SHT2,5C)
8
(SHT2,7C)
20
PANEL MIC
FRONT
(SHT2,7C)
(SHT2,6D)
40
CH 4
(2A)
(TO 2D)
NOTES: UNLESS OTHERWISE SPECIFIED
MIC VIA NETWORK)
(SHT1,5A)
(SHT1,6D)
13
VSS
39-51-3304
(SHT1,8D)
(7D)
10
4
SOURCE
(SHT1,7C)
VDD
(SHT1,8B)
11
(SHT2,6B)
NEUTRAL
CALL LIGHT
(7D)
SOURCE
6
ON
LEDS
(SHT2,1D)
(5D)
7
N.C.
39-51-3304
1. ALL RESISTORS ARE CARBON FILM,1/8W,5%.
(TO 2D)
CH 2
1
12
14
(TO DIGITAL IC'S)
14
16
5
18
CH 4
15VAC
CALL LIGHT
CH 3
PANEL
7
MIC ON
9
(SHT1,4B)
(SHT1,6D)
(SHT2,6D)
2. CAPACITANCE VALUES ARE SHOWN IN MICROFARADS/VOLTS.
(TO ELECTRET PANEL
(SHT2,3C)
CALL RED
OFF
PANEL
SPKR ON
SOURCE
HEATSINK
(SHT1,4C)
CH 1
J21
(SHT2,1D)
(AUDIBLE)
(SHT2,6B)
VOLTAGE
(SHT1,6A)
(7D)
17
MOLEX FFC
(SHT1,1D)
J21
(SHT2,1D)
HOT
(SHT1,4D)
PANEL MIC
MOLEX FFC
CH 3
(SHT1,4C),(SHT2,5C)
2
MIC ON
9027624501 A
3 MOTHER BOARD MCE325
Title
DWG. NO. REV
PAGE
+7V
17-25VDC SOURCE
+7V
+5V
+5V
+14V
+5V
+5V
+5V
+14V
+5V
+5V
+14V
+14V
+5V
+5V
+5V
+5V
+5V
+14V
+14V
+5V
+5V
+4.5V
+5V
+17-25VDC
+5V
U24
UCN5821A
7
2
6
1 16
15
14
13
12
11
10
9
4
5
8
3
EN
DI
STR
CLK D0
D1
D2
D3
D4
D5
D6
D7
VCC
DO
GND
.
R211
22K
R212
270K
R214
10K
R213
270K
AC PLUG
1
2
3
F1
0.5A SBLO
1 2
D21
1N4004
D22
1N4004
- +
CR1
KBL005
50VRRM
4.0A
1
2
3
4
R261
22K
U25
UCN5821A
7
2
6
1 16
15
14
13
12
11
10
9
4
5
8
3
EN
DI
STR
CLK D0
D1
D2
D3
D4
D5
D6
D7
VCC
DO
GND
.
R264
220K
R265
220K
U28
93C56
5
8
4 3
1
2
-
+
O I
S
C
E10 E11
E12 E13
RP2H
22K
1
9
RP2G
22K
1
8
R262
3.01K
1%
R263
301
1%
R266
909
1%
RP10C 100K 5 6
RP10D 100K 7 8
R267
301
1%
R268
200
RP11D 100K 7 8
E15
RP11C 100K 5 6
E6
RP11B 100K 3 4
E14
E7
E16
RP11A 100K 1 2
E9
RP10B 100K 3 4
RP8A
22K
1
2
E8
RP10A 100K 1 2
RP8B
22K
1
3
R269
10K
RP8C
22K
1
4
RP8D
22K
1
5
RP8E
22K
1
6
RP8F
22K
1
7
C135
22/50
+
X0
X1
Y0
Y1
Z0
Z1
X
Y
Z
XX
YY
ZZ
U21
4053
7 6 8
16
11
10
9
12
13
2
1
5
3
14
15
4
RP8G
22K
1
8
R201
3.01K
1%
RP8H
22K
1
9
RP8I
22K
1
10
RP9H
22K
1
9
RP9F
22K
1
7
RP9G
22K
1
8
RP9A
22K
1
2
RP9B
22K
1
3
U23
UCN5821A
7
2
6
1 16
15
14
13
12
11
10
9
4
5
8
3
EN
DI
STR
CLK D0
D1
D2
D3
D4
D5
D6
D7
VCC
DO
GND
.
RP9C
22K
1
4
RP9D
22K
1
5
RP9E
22K
1
6
R199
10K
+
-
U16A
TL072
3
2
1
8
4
RP9I
22K
1
10
+
-
U17B
NE5532
5
6
7
U30A
4093
1
2
3
U26
LM317T
3
1
2
IN
A
OUT
S1
K40-8S
1
2
3
4
5
6
7
8 16
15
14
13
12
11
10
9
U27
LM317T
3
1
2
IN
A
OUT
C122
.1/50
R215
100K
U30B
4093
5
6
4
C134
.1/50
RP12D 100K 7 8
U29
MC68HC7058
4
5
6
7
8
9
10
11
21
22
23
24
25
26
27
28
35
2
39
38
29
30
31
32
33
34
36
1
37
3
12
13
14
15
16
17
18
19
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
TCMP
IRQ
OSC1
OSC2
PD0/RDI
PD1/TDO
PD2/MISO
PD3/MOSI
PD4/SCK
PD5/SS
PD7
RESET
TCAP
VPP
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
RP12A 100K 1 2
R198
270K
RP12B 100K 3 4
RP12C 100K 5 6
Y1
4.00MHz
1
2
R200
2.2M
C117
10pF
C118
.1/50
C119
.01/50
MYLAR
RP14A 680 1 2
C140
.1/50
RP14B 680 3 4
RP15B 680 3 4
U30C
4093
8
9
10
C85
.1/50
RP15C 680 5 6
R207
100K
RP15D 680 7 8
C138
.1/50
R208
10K
RP15E 680 9 10
R209
1K
RP14C 680 5 6
RP14E 680 9 10
C120
100pF
U30D
4093
12
13
11
C139
.1/50
RP14D 680 7 8
C121
10pF
C125
4700/35
+
C126
.1/500
C127
10/25
+
C128
10/25
+
C115
10pF
C129
100/25
+
C116
10pF
C130
.1/50
C131
10/25
+
C132
.1/50
C133
100/25
+
D20 1N4004 T1
TO-10R-RT
15VA
U22
MC33064
2 1
3
IN RSET
GND
LSN1
CALL CTL1
CARB MIC
DSW7
STC
CALL 1
TC3
TC4
MONO
+14V IN
LIST4
+18V IN
TC1
TC2
HMS/PMS
LSN3
DSW5
LSN4 CALL CTL2
CALL 4
CALL 2
VOX IN
CALL CTL2
SPKR MUTE
VOX IN
DSW7
LSN2
VOX REC
LIST2
SPKR ON
LIST3
REM MIC
CALL LIGHT MUX
CALL 3
LIST1
DSW5
SPKR DIM
ISO
CALL CTL1